A plant-based diet, low in dairy and meat but rich in fruits, vegetables, grains, and nuts, can improve sexual and urinary health in patients treated for local prostate cancer, new research showed.

The findings, published on February 13, 2024, in the journal Cancer, bolster previous research showing plant-based diets can reduce the risk for recurrence and improve survivorship in men with prostate cancer.

“The current study shows for the first time an association between eating more plant-based food with better scores for quality of life among patients diagnosed with prostate cancer,” Stacy Loeb, MD, a urologist in the Departments of Urology and Population Health at NYU Langone Health, in New York City, who led the research.

Justin Gregg, MD, a urology researcher at the University of Texas MD Anderson Cancer Center, in Houston, Texas, whose research has found the Mediterranean diet can slow tumor progression among men with localized prostate cancer on active surveillance, called the results “not entirely surprising, as prior studies have shown associations between plant-based diet and outcomes like erectile function among men who do not have prostate cancer.”